Many copepods display a swim-and-sink behaviour, which is not energetically efficient but probably aids in perceiving and capturing diatom chains.Here, computational fluid dynamics was employed to calculate the mechanical power required by a negatively buoyant, self-propelled copepod in swim-and-sink versus hovering.The results show that upward swi
GIScience research challenges for realizing discrete global grid systems as a Digital Earth
Increasing data resources are available for documenting and detecting changes in environmental, ecological, and socioeconomic processes.Currently, data are distributed across a wide variety of sources (e.g.data silos) and Fragrance published in a variety of formats, scales, and semantic representations.A key issue, therefore, in building systems th
The Relationship Between the Level of Copper, Lead, Mercury and Autism Disorders: A Meta-Analysis
Hamed Jafari Mohammadabadi1 *,* Aryoobarzan Rahmatian2 *,* Fatemeh Sayehmiri,3 Mohammad Rafiei4 1School of Medicine, Shiraz University of Medical Sciences, Shiraz, Fars, Iran; 2Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran; 3Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran
Spatial and temporal dynamics of stream chemistry in a forested watershed
Spatial dynamics of solute chemistry and natural abundance isotopes of nitrate (<sup>15</sup>N and <sup>18</sup>O) were examined in seven locations and at the watershed outlet in 2001 and 2002 in a forest watershed in the Adirondack Mountains of New York State, USA.Temporal dynamics were examined during five discharge period